[Resolved]  Postman — postman putting letters of other persons at our house

My home address is 11-J.J garden, chidambaram complex, karamarampalayam, mannarai P.O , Tirupur.
Recently we are getting letters of other addresses at our residence. Post man is not reading the addresses correctly and is putting those letters in our mail box. Previously we returned some letters to the post man but again he is doing this. Recently there was a letter having admit card and roll no. of a student who had to appear in some exams. Luckily there was phone no. mentioned on it so we could call and that student came and took the letter. This is a serious negelance on part of postman and he is playing with future of people as no one knows what letters are important to whom. Kindly take this as a serious matter and take some action.